• Sublime Core Feed

Description

Detects messages impersonating Robinhood by analyzing sender display name, domain, body content including specific address references, and social media links, while excluding legitimate Robinhood communications with proper DMARC authentication.

References

No references.

Sublime Security
Created Mar 26th, 2026 • Last updated Mar 26th, 2026
Source
type.inbound
and (
  (
    any(ml.nlu_classifier(body.current_thread.text).entities,
        .name in ("org", "sender") and strings.icontains(.text, 'Robinhood')
    )
    and (
      any(ml.nlu_classifier(body.current_thread.text).intents,
          .name == "callback_scam" and .confidence != "low"
      )
    )
  )
  or strings.icontains(body.current_thread.text, 'The Robinhood Team')
  or regex.icontains(body.current_thread.text, '©\s*20[0-9]{2}\s*\s*Robinhood')
  or 2 of (
    strings.icontains(body.current_thread.text, "Robinhood"),
    regex.icontains(body.current_thread.text, '42 Willow (?:Road|St)'),
    strings.icontains(body.current_thread.text, "Menlo Park, CA 97095")
  )
  or (
    strings.icontains(sender.display_name, 'Robinhood')
    and (
      3 of (
        regex.icontains(body.current_thread.text, 'Location:?'),
        regex.icontains(body.current_thread.text, 'Time:'),
        regex.icontains(body.current_thread.text, 'Device:?'),
        regex.icontains(body.current_thread.text, 'IP Address:?')
      )
      or strings.icontains(body.current_thread.text, "new passkey added")
    )
  )
  or (
    length(filter(body.links,
                  strings.icontains(.href_url.url,
                                    'https://www.facebook.com/robinhood'
                  )
                  or strings.icontains(.href_url.url,
                                       'https://twitter.com/robinhoodapp'
                  )
                  or strings.icontains(.href_url.url,
                                       'https://www.youtube.com/@RobinhoodApp'
                  )
                  or strings.icontains(.href_url.url,
                                       'https://www.instagram.com/robinhood'
                  )
           )
    ) >= 2
  )
)
// negate legitimate replies and forwards
and (
  (
    (
      length(headers.references) > 0
      or not any(headers.hops,
                 any(.fields, strings.ilike(.name, "In-Reply-To"))
      )
    )
    and not (subject.is_reply or subject.is_forward)
  )
  or length(headers.references) == 0
)
// negate newsletters and webinars
and not any(ml.nlu_classifier(body.current_thread.text).topics,
            .name in ("Newsletters and Digests", "Events and Webinars")
            and .confidence == "high"
)
and not (
  sender.email.domain.root_domain in (
    "robinhood.com",
    "robinhood.org",
    "duck.com", // unrelated domain
    "robinhoodauctions.com", // unrelated domain
    "bitstamp.net" // robinhood acquisition
  )
  and coalesce(headers.auth_summary.dmarc.pass, false)
)
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